CN211904398U - Correcting device for three-dimensional laser vibration meter - Google Patents
Correcting device for three-dimensional laser vibration meter Download PDFInfo
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- CN211904398U CN211904398U CN201922215862.7U CN201922215862U CN211904398U CN 211904398 U CN211904398 U CN 211904398U CN 201922215862 U CN201922215862 U CN 201922215862U CN 211904398 U CN211904398 U CN 211904398U
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Abstract
The utility model provides a correcting device for three-dimensional laser vibrometer, which comprises a prism and a radial extension part, wherein the upper end of the prism is provided with a workpiece or a workpiece fixture mounting interface, and the lower end of the prism is provided with a rotary workbench mounting interface; each prism side face is a vertical face, the radial extension part is formed by radially extending from each prism side face, the top end of the radial extension part is provided with an end face, and the end face is a vertical face; each prism side surface and the corresponding end surface form a three-dimensional correction plane group; and correction marks are arranged on the side surface and the end surface of the prism. According to the technical scheme, the accuracy of the laser vibration meter for measuring the space vibration of the small component is effectively improved. The device makes the laser vibration meter more approximate to the theoretical simulation result to the space vibration measurement result of the small component. The method has important significance for the research of the space vibration of the small component.
Description
Technical Field
The utility model relates to a technical field of instrument installation adjustment, concretely relates to a correcting unit for three-dimensional laser vibrometer.
Background
At present, a standard coordinate plate matched with the laser vibration meter can be used for calibrating the coordinate measurement precision of the laser vibration meter. The limitation of the laser beam deflection angle of the laser vibrometer can only measure the local space vibration of the measured object at one time, and the realization of the whole space vibration measurement can only rotate the standard coordinate plate and the measured object or rotate the laser probe of the laser vibrometer. For the measurement of the spatial vibration of a large component, the method that the laser probe of a laser vibration meter rotates and the spatial position of a measured object is unchanged is generally adopted for measurement, but the accuracy of a measurement result puts requirements on the interference intensity of the environmental vibration and the stability of a laser beam in the laser rotation process, and the method requires the intellectualization of the laser probe and the measurement of the environmental vibration resistance, and is very high in cost. For the small component space vibration measurement, in order to ensure the stable output of the laser beam, reduce the influence of the environmental vibration on the stable output of the laser beam as much as possible and improve the 360-degree global vibration measurement accuracy, the measurement is carried out by adopting a mode that a standard coordinate plate and a measured object rotate simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: the three-dimensional laser vibration meter is matched with a standard coordinate plate in 360-degree global vibration state measurement of a small component, and has the following problems: 1) in the space coordinate position test, the coordinate position cannot be accurately measured due to the perpendicularity difference between a laser beam emitted by a laser vibration meter and a coordinate flat plate, and the space coordinate error becomes large after a plurality of angle measurements; 2) placing an object to be measured, wherein the object to be measured is easily interfered by external vibration to cause position change to cause spatial vibration measurement overlapping or missing; 3) the matched standard coordinate flat plate cannot rotate according to a specified angle, so that the angular rotation is not easy to control, and the spatial vibration measurement is overlapped or lost. The three factors make the three-dimensional laser vibration meter not completely present the object space vibration, and the measurement result is repeated or lost due to the fact that the space coordinate position is not easy to control.
The technical scheme is as follows:
the utility model provides a correcting device for a three-dimensional laser vibration meter, which comprises a prism and a radial extension part, wherein the upper end of the prism is provided with a workpiece or a workpiece clamp mounting interface, and the lower end of the prism is provided with a rotary workbench mounting interface; each prism side face is a vertical face, the radial extension part is formed by radially extending from each prism side face, the top end of the radial extension part is provided with an end face, and the end face is a vertical face; each prism side surface and the corresponding end surface form a three-dimensional correction plane group; and correction marks are arranged on the side surface and the end surface of the prism.
Furthermore, the prism section is triangle, square, equilateral pentagon or equilateral hexagon.
Further, the prism is a triangular prism, a quadrangular prism, a pentagonal prism or a hexagonal prism.
Further, the prism is of an axisymmetric structure.
Further, the radial extension is located at the center of the prism side face.
Further, the radial extension is a radially extending cylinder or prism.
Further, the planar shape of each prism side face and the corresponding end face is the same.
Furthermore, all the end faces are uniformly distributed annularly.
Further, the correction mark is a correction point or a correction cross. Labeling, etching, scribing, etc. may be accomplished by one skilled in the art.
The utility model has the advantages that: the accuracy of the laser vibration meter for measuring the space vibration of the small component is effectively improved. The device makes the laser vibration meter more approximate to the theoretical simulation result to the space vibration measurement result of the small component. The method has important significance for the research of the space vibration of the small component.
Drawings
Fig. 1 is a schematic structural view of the present invention (embodiment 1);
FIG. 2 is a schematic structural view of example 2;
FIG. 3 is a schematic diagram of laser light converging at a prism side surface correction point;
FIG. 4 is a schematic view of laser light converging at an end face calibration point;
wherein: 1-a prism; 2-a radial extension; 3-prism sides; 4-end face; 5-correcting the mark; 6-a workpiece; 7-a workpiece holder; 8-rotating the worktable; 9-laser light.
Detailed Description
The following embodiments are given in conjunction with the accompanying drawings
The prism is a quadrangular prism.
The prism is of an axisymmetric structure.
The radial extension is located at the center of the prism side face.
The radial extension is a radially extending prism.
The planar shapes of each prism side face and the corresponding end face are the same.
The prism section is an equilateral long hexagon.
The prism is a hexagonal prism.
The radial extension is located at the center of the prism side face.
The radial extension is a radially extending cylinder.
The planar shapes of each prism side face and the corresponding end face are the same.
All the end faces are uniformly distributed annularly.
Claims (9)
1. A correcting device for a three-dimensional laser vibration meter is composed of a prism and a radial extension part, wherein the upper end of the prism is provided with a workpiece or workpiece clamp mounting interface, and the lower end of the prism is provided with a rotary workbench mounting interface; each prism side face is a vertical face, the radial extension part is formed by radially extending from each prism side face, the top end of the radial extension part is provided with an end face, and the end face is a vertical face; each prism side surface and the corresponding end surface form a three-dimensional correction plane group; and correction marks are arranged on the side surface and the end surface of the prism.
2. The calibration device for the three-dimensional laser vibrometer according to claim 1, characterized in that: the prism section is triangle, square, equilateral pentagon or equilateral hexagon.
3. The calibration device for the three-dimensional laser vibrometer according to claim 1, characterized in that: the prism is a quadrangular prism, a pentagonal prism or a hexagonal prism.
4. The calibration device for the three-dimensional laser vibrometer according to claim 1, characterized in that: the prism is of an axisymmetric structure.
5. The calibration device for the three-dimensional laser vibrometer according to claim 1, characterized in that: the radial extension is located at the center of the prism side face.
6. The calibration device for the three-dimensional laser vibrometer according to claim 1, characterized in that: the radial extension is a cylinder or prism extending radially.
7. The calibration device for the three-dimensional laser vibrometer according to claim 1, characterized in that: the planar shapes of each prism side face and the corresponding end face are the same.
8. The calibration device for the three-dimensional laser vibrometer according to claim 1, characterized in that: all the end faces are uniformly distributed annularly.
9. The calibration device for the three-dimensional laser vibrometer according to claim 1, characterized in that: the correction marks are correction points or correction crosses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215862.7U CN211904398U (en) | 2019-12-11 | 2019-12-11 | Correcting device for three-dimensional laser vibration meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215862.7U CN211904398U (en) | 2019-12-11 | 2019-12-11 | Correcting device for three-dimensional laser vibration meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211904398U true CN211904398U (en) | 2020-11-10 |
Family
ID=73292476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922215862.7U Active CN211904398U (en) | 2019-12-11 | 2019-12-11 | Correcting device for three-dimensional laser vibration meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211904398U (en) |
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2019
- 2019-12-11 CN CN201922215862.7U patent/CN211904398U/en active Active
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